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Definition |
Chronic exposure to LHRH agonists results in the down-regulation of LHRH-receptors, suppressing LH and FSH secretion and therefore testosterone production. The castration level is usually obtained within 2-4 weeks. However, about 10% of treated patients fail to achieve castration levels, which rise to 15% if the castration threshold is defined as 1 nmol/l. Although there is no formal direct comparison between the various compounds, they are considered to be equally active [548] and comparable to orchiectomy.
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